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QUEST--a quick echo split NMR imaging technique

O Heid¹, M Deimling, W Huk

¹Neuroradiological Department of the Neurosurgical Hospital, University of Erlangen-Nürnberg, Germany.

Magnetic Resonance in Medicine

|February 1, 1993

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A new NMR imaging method, QUick Echo Split imaging Technique (QUEST), generates numerous echoes from a single decay. This rapid technique overcomes limitations of gradient switching and RF absorption for faster imaging.

Area of Science:

Magnetic Resonance Imaging
Nuclear Magnetic Resonance Spectroscopy

Background:

Stopped-pulse experiments are a key technique in NMR.
Existing NMR imaging methods face limitations in speed and efficiency.

Purpose of the Study:

Introduce a novel millisecond NMR imaging method.
Generalize the principle of stopped-pulse experiments for enhanced imaging.

Main Methods:

Developed the QUick Echo Split imaging Technique (QUEST).
Utilized repeated dephasing and excitation to generate multiple echoes.
Employed minimal gradient lobes and RF pulses.

Main Results:

QUEST divides a primary free induction decay into an exponentially growing number of echoes.

Related Experiment Videos

The method is not limited by gradient switching speed or RF absorption.

True spin echoes are readily produced.

Conclusions:

QUEST is a novel and efficient millisecond NMR imaging technique.
The method offers advantages over existing techniques by overcoming speed limitations.
QUEST facilitates the production of true spin echoes for advanced NMR applications.